2. Buoyancy Test

jewellery, fashion accessory, ring, diamond, gemstone,

Diamonds are very dense. Place a diamond, without a setting, into a glass of water. If it sinks to the bottom right away, it could be real. If it floats or hangs out in the middle of the glass, it's not real. However, some stones will also sink so pair this test with another!

Brilliance & Fire
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